<?php // $Id: chat_message.php,v 1.11 2005/05/18 13:58:20 bvanderkimpen Exp $
/*
==============================================================================
	Dokeos - elearning and course management software

	Copyright (c) 2004 Dokeos S.A.
	Copyright (c) 2003 Ghent University (UGent)
	Copyright (c) 2001 Universite catholique de Louvain (UCL)
	Copyright (c) Olivier Brouckaert

	For a full list of contributors, see "credits.txt".
	The full license can be read in "license.txt".

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.

	See the GNU General Public License for more details.

	Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
==============================================================================
*/
/**
==============================================================================
*	Allows to type the messages that will be displayed on chat_chat.php
*
*	@author Olivier Brouckaert
*	@package dokeos.chat
==============================================================================
*/

/*
==============================================================================
		INIT SECTION
==============================================================================
*/

define('FRAME','message');

$language_file = array ('chat');

require('../inc/global.inc.php');
//api_protect_course_script();

include_once(api_get_path(LIBRARY_PATH).'document.lib.php');
include_once(api_get_path(LIBRARY_PATH).'text.lib.php');
include_once (api_get_path(LIBRARY_PATH).'fileUpload.lib.php');

/*
-----------------------------------------------------------
	Constants and variables
-----------------------------------------------------------
*/
$tbl_user	= Database::get_main_table(TABLE_MAIN_USER);
$sent = $_REQUEST['sent'];

/*
==============================================================================
		MAIN CODE
==============================================================================
*/
$query="SELECT lastname, firstname, username FROM $tbl_user WHERE user_id='".$_user['user_id']."'";
$result=api_sql_query($query,__FILE__,__LINE__);

list($pseudoUser)=mysql_fetch_row($result);

$isAllowed=(empty($pseudoUser) || !$_cid)?false:true;
$isMaster=$is_courseAdmin?true:false;

$firstname=mysql_result($result,0,'firstname');
$lastname=mysql_result($result,0,'lastname');

$dateNow=date('Y-m-d');

if(isset($_GET['id']))
	$chatId = intval($_GET['id']);

//$documentPath=api_get_path(SYS_COURSE_PATH).$_course['path'].'/document/';
$chatPath = api_get_path(SYS_PATH) . 'chatrooms/'.$chatId."/";
//$TABLEITEMPROPERTY= Database::get_course_table(TABLE_ITEM_PROPERTY);

if(!is_dir($chatPath))
{
	if(is_file($chatPath))
	{
		@unlink($chatPath);
	}

	@mkdir($chatPath,0777);
	@chmod($chatPath,0777);

	//$doc_id=add_document($_course,'/chat_files','folder',0,'chat_files');

	//api_sql_query("INSERT INTO ".$TABLEITEMPROPERTY . " (tool,insert_user_id,insert_date,lastedit_date,ref,lastedit_type,lastedit_user_id,to_group_id,to_user_id,visibility) VALUES ('document',1,NOW(),NOW(),$doc_id,'DocumentAdded',1,0,NULL,0)");
	
}

$chat_size=0;

if($sent)
{
	$message=trim(htmlspecialchars(stripslashes($_POST['message'])));
	
	if(!empty($message))
	{
		$message=make_clickable($message);

		if(!file_exists($chatPath.'messages-'.$dateNow.'.log.html'))
		{
			//$doc_id=add_document($_course,'/chat_files/messages-'.$dateNow.'.log.html','file',0,'messages-'.$dateNow.'.log.html');

			//api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'DocumentAdded', $_user['user_id']);
			//item_property_update_on_folder($_course,'/chat_files', $_user['user_id']);
		}
		else
		{
			//$doc_id = DocumentManager::get_document_id($_course,'/chat_files/messages-'.$dateNow.'.log.html');
		}
		
		$fp=fopen($chatPath.'messages-'.$dateNow.'.log.html','a');

		if($isMaster)
		{
			fputs($fp,"<span style='color: #2754AF;'><b>$firstname $lastname</b></span> : $message<br>\n");
		}
		else
		{
			fputs($fp,"<b>$firstname $lastname</b> : $message<br>\n");
		}

		fclose($fp);

		$chat_size=filesize($chatPath.'messages-'.$dateNow.'.log.html');

		//update_existing_document($_course, $doc_id,$chat_size);
		//item_property_update_on_folder($_course,'/chat_files', $_user['user_id']);
	}
}

include('header_frame.inc.php');
?>

<form name="formMessage" method="post" action="<?php echo api_get_self()."?id=$chatId"; ?>" onsubmit="javascript:if(document.formMessage.message.value == '') { alert('<?php echo addslashes(htmlentities(get_lang('TypeMessage'))); ?>'); document.formMessage.message.focus(); return false; }" autocomplete="off">
<input type="hidden" name="sent" value="1">
<table border="0" cellpadding="5" cellspacing="0" width="100%">
<tr>
  <td width="520" valign="middle">
  	<textarea name="message" style="width: 520px; height: 35px" onkeydown="send_message(event);"></textarea>
  </td>
  <td>
  	<input type="submit" value="<?php echo get_lang("Send"); ?>" class="background_submit">
  </td>
</tr>
</table>
</form>
<!-- Sending file -->
<?php
// Upload file
$maxFileSize = 20 * 1024 * 1024; // 20 MB
if(isset($_GET['upload']) && intval($_GET['upload']) == 1)
{
	// based on file upload API, see handle_uploaded_document()
	if(!isset($_FILES['fileUpload']))
		Display::display_error_message("<p>Your file cannot be bigger than " . ini_get('post_max_size') . ". If possible, compress the file before reupload.</p>", false);
	//$size = $_FILES['fileUpload']['size'];
	// Any errors?
	elseif($_FILES['fileUpload']['error'] > UPLOAD_ERR_OK)
	{
		$message = "<p>";
		switch($_FILES["fileUpload"]["error"])
		{
		case UPLOAD_ERR_INI_SIZE: 
			$message .= "Your file cannot be bigger than " . ini_get('post_max_size') . ". If possible, compress the file before reupload."; 
			break; 
		case UPLOAD_ERR_FORM_SIZE: 
			if(isset($_POST['frmFile']['MAX_FILE_SIZE']))
				$maxSize = intval($_POST['frmFile']['MAX_FILE_SIZE']) . " bytes";
			else
				$maxSize = ini_get('post_max_size');
			$message .= "Your file cannot be bigger than $maxSize. If possible, compress the file before reupload."; 
			break; 
		case UPLOAD_ERR_PARTIAL: 
			$message .= "The uploaded file was only partially uploaded. Please try reuploading your file."; 
			break; 
		case UPLOAD_ERR_NO_FILE: 
			$message .= "No file was uploaded."; 
			break; 
		case UPLOAD_ERR_NO_TMP_DIR: 
			$message .= "Missing a temporary folder."; 
			break; 
		case UPLOAD_ERR_CANT_WRITE: 
			$message .= "Failed to write file to disk. Please contact the manager if you constantly see this error."; 
			break; 
		case UPLOAD_ERR_EXTENSION: 
			$message .= "File upload stopped by an PHP extension."; 
			break; 
		
		default: 
			$message .= "Unknown upload error."; 
			break; 
		}
		$message .= "</p>";
		Display::display_error_message($message, false);
	}
//	elseif($size > $maxFileSize)
//		echo "<p>File is too big. Max file size: " . round($maxFileSize) / 1024 . "KB.</p>";
	else
	{
		// Strip slashes
		$filename = stripslashes($_FILES['fileUpload']['name']);
		// Add extension to filename (if possible)
		$filename = add_ext_on_mime($filename, $_FILES['fileUpload']['type']);
		// Clean up name
		// Remove dangerous chars
		$cleanName = replace_dangerous_char($filename);
		// Disable dangerous files
		$cleanName = disable_dangerous_file($cleanName);
		//echo $cleanName;
		$uploadDir = api_get_path(SYS_PATH) . 'chatrooms/'.$chatId."/";
		$uploadFile = $uploadDir . $cleanName;
		// File already exists?
		if(file_exists($uploadFile))
			Display::display_error_message("<p>File already exists. Please rename the file, then reupload.</p>", false);
		elseif(@move_uploaded_file($_FILES['fileUpload']['tmp_name'], $uploadFile))
		{
			Display::display_confirmation_message("<p>Files uploaded.</p>", false);
			// Send message
			$fileUri = api_get_path(WEB_PATH) . 'chatrooms/'.$chatId."/" . $filename;
			$message = "has uploaded <a href=\"$fileUri\">$filename</a>. Right click and choose <strong>Save target as...</strong> to download.";
			$message=make_clickable($message);
			$fp=fopen($chatPath.'messages-'.$dateNow.'.log.html','a');

			if($isMaster)
			{
				fputs($fp,"<span style='color: #2754AF;'><b>$firstname $lastname</b></span> : $message<br>\n");
			}
			else
			{
				fputs($fp,"<b>$firstname $lastname</b> : $message<br>\n");
			}

			fclose($fp);
			
		}
		else
			Display::display_warning_message("<p>Files not uploaded.</p>", false);
	}
	
	/*
	$allowedExt = array(
		// Images
		"gif", "jpeg", "jpg", "bmp", "png",
		// Archives 
		"zip", "rar", "gz", "tar", "7z"
	);
	$allowedMime = array(
		// Images
		"image/gif", "image/jpeg", "image/jpg", "image/pjpeg", "image/bmp", "image/png",
		// Archives
		"application/zip", "application/x-rar-compressed", "application/gzip", "application/x-tar", "application/x-7z-compressed"
	);
	$tempFilename = explode(".", $_FILES['fileUpload']['name']);
	$extension = strtolower(end($tempFilename));
	$fileType = $_FILES['fileUpload']['type'];
	*/
}
?>
<form name="frmFile" method="post" enctype="multipart/form-data" action="<?php echo api_get_self()."?id=$chatId&upload=1"; ?>">
	<label for="file">Choose file to send: </label>
	<input type="hidden" name="MAX_FILE_SIZE" value="<?php echo $maxFileSize; ?>" />
	<input type="file" name="fileUpload" /> <input type="submit" name="btnUpload" value="Upload" />
</form>
<?php
include('footer_frame.inc.php');
?>
